/*
 * Copyright 2010 Gal Dolber.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.jaspec;

import static junit.framework.Assert.*;

/**
 * Have handler for collection jaspec.
 */
public class JaspecCollectionHave<I> {

  private final JaspecCollection<I> j;
  private final int i;
  private final Have shouldHave;

  public JaspecCollectionHave(JaspecCollection<I> j, int i, Have shouldHave) {
    this.j = j;
    this.i = i;
    this.shouldHave = shouldHave;
  }

  /**
   * Check the number of items.
   */
  public void items() {
    int size = j.obj.size();
    if (!j.not) {
      switch (shouldHave) {
        case EXACTLY:
          assertEquals("The collection should have " + i + " items", size, i);
          break;
        case AT_LEAST:
          assertTrue("The collection should have at least " + i + " items", size >= i);
          break;
        case AT_MOST:
          assertTrue("The collection should have at most " + i + " items", size <= i);
          break;
      }
    } else {
      switch (shouldHave) {
        case EXACTLY:
          assertNotSame("The collection should not have " + i + " items", size, i);
          break;
        case AT_LEAST:
          assertFalse("The collection should not have at least " + i + " items", size >= i);
          break;
        case AT_MOST:
          assertFalse("The collection should not have at most " + i + " items", size <= i);
          break;
      }
    }
  }
}
